Pump.



G. MILLER & N. J. BEGKNER.

PUMP.

APPLICATION FILED JULY 27, 1912.

Patented Feb. 17, 1914.

G. MILLER & N. J. BEGKNER.

PUMP.

APPLICATION TILED JULY 27, 1912.

1,087,675, Patented Feb. 17, 1914.

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barren sriaras rA'rEnr caries.

PUMP.

Specification of Potters Patent.

Patented Feb. 17, 1914.

Application filed July 27, 1912. Serial No. 711,907.

To all whom it may concern;

Be it known that we, GEORGE MILLER and NOAH J. Bnonnnacitizens of theUnited States, residing at Mabton, in the county of Yakima and State ofWashington, have invented certain new and useful Improvements in Pumps;and we do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to whichit appertains to make and use the same.

Our invention relates to new and useful improvements in pumps and moreparticularly to centrifugal pumps.

The object of our invention is to provide a pump of the class describedwhich is adapted to handle heavy liquids or li uids containing coarseparticles, as well as ight fluids such as water.

Other objects and advantages of our invention will be hereinafter setforth in the specification and pointed out in the claims.

In the accompanying drawings we have shown the preferred embodiment ofour invention.

In said drawings, Figure 1 is a perspective view of our invention. Fig.2 is a perspective View of the rotary member of the pump. Fig. 3 is avertical sectional view through the casing and rotary member. Fig. 4 isa. top plan view of the casing with the cover removed, portions of therotating member being shown in section, and, Fig. 5 is a perspectiveview of the bottom of the driving member.

' Referring to the drawings in which similar reference numeralsdesignate correspond- .ing parts throughout the several views, 1 in--dicates a housing provided with flanges 2, by means of which the samemaybe secured to 'a suitable pedestal or support. The housing 1 issubstantiall circu ar in cross section and is preferab y arrangedvertically, 'as shown. Said housin is'provided, on one of its sides,withan in ct opening 3. A collar 4 preferably surrounds the inletopening, the outerend of which is provided with an outwardly extendingflange 5, which is adapted to be bolted or otherwise secured toanypreferred form of conduit pipe. The upper side of the housing isformed by a cover 6, which is removably secured to the housing in anypreferred manner, as by bolts 7, which pass through said cover andthrough a peripheral flange 8 on said housing. The cover 6 is providedcentrally with a sleeve 9 adapted to form a bearing for a shaft 10. Theupper end of the sleeve 9 is recessed to receive a sleeve 11. The spacebetween the end of the sleeve 11 and the inner end of the enlargedportion in the sleeve 9 is adapted to be filled by suitable Packing.

The impeller casing is substantially cylindrical in form and comprisesend disks 12 and 13 and driving blades secured therebetween. The disk 13is preferably slightly tapered downwardly from its outer edge to thecentral portion thereof. The disk 13 has an opening formed centrallythereof and is provided with an outwardly extending collar 14:, whichextends into the intake aperture 3 of the casing. The disk 13 is spaceda slight distance from the lower portion of the housing 1 and isprovided on its under surface with oppositely disposed shoulders 15, thebottom of said casing tapering helically from the outer end of one ofsaid shoulders to the base of the oppositely disposed shoulder. Theshoulders are arranged upon the lower portion of the disk 13 in a mannerhereinafter more clearly set forth. The disk 12 is provided with asleeve 16 which is keyed or otherwise rigidly secured to the shaft 10andis adapted to be driven thereby.

Secured to or integral with the end disks 12 and 13, are a plurality ofdriving blades 17, said driving blades beginning near the axial centerof the driving member and extending spirally therefrom to the outerperiphery of said member, as clearly shown in Fi 4 of the drawings.

s shown in the drawings, the driving member is adapted to be rotated .ina contraclock-wise direction and the shoulders on the disk, 13 thereofare arranged so that the inclined surface therebetween will be directedagainst the water or other liquid in the lower ortion of the casing. Byarranging the inc ined surfaces, as described, the same will act uponthe water in the lower portion of the casing and help carry the weightof the driving member. The weight of the driving member is carried by asuitable anti friction bearing, comprising a lower member 18 rigidlysupported in any desired manner and an upper member 19 rigidly secured Iarranged spirally around the driving memher, one end thereof beingsecured to or near the disk 13 and the other end to the driving bladesnear the disk 12 so that, when the driving drum is rotated, the contentswill be moved toward one end of said housing. As shown in the drawing,the member 21 is arranged to move the contents of the housing toward theupper or discharge side thereof.

The housing and cover are provided at one point with an opening adaptedto receive a discharge pipe 29.,through which the contents of the pumpare forced. The cover 6 is provided with a depending stop '23, which issecured thereto in any preferred manner, as by bolts 24. The stop 23 isarranged upon the cover to one side of the discharge pipe 22 and justclears themember 21. The stop 23 is adapted to prevent the liquid fromcirculating around inside of the hous- WVhen in operation, the shaft 10is rotated from any desired source of power (not shown) and the blades17 due to their peculiar shape, will draw the liquid through the intake3 of the opening into said housing. At the same time the screw'member 21will force the liquid to the upper end of the housing, the liquid beingdischarged therefrom through the pipe 22.

With our construction of centrifugal pump, we are enabled to handlethicker. and coarser materials than is usually the case. With theordinary form of centrifugal pump, it is practically impossible tohandle liquids containing sand, gravel and like material, as suchmaterials tend tocollect in the outer portion of the casing and clog thedriving blades. In our construction, however, by the use of theelevating screw member 21, such accumulation is prevented, said membermoving such particles toward the discharge opening, through whlch saidparticles are drawn by the rush of liquid through the pump.

From the foregoing, it will be seen that we have provided a simple,compact structure and one which will be very efficient in use. It willfurther be seen that our centrifugal pump may be used in many placeswhen it is impossible to use the pumps of ordinary construction.

2. In a rotary pump, the combination with a casing having an inletopening in one side i and an outlet opening at the upper surface of saidcasing, of a driving member, a collar on one side of said driving memberjournaled in said inlet opening, a driving shaft extending through saidcasing and secured to the opposite side of said driving member, aplurality of blades arranged spirally of said driving member and meanssecured to said driving member adapted to move the contents of thecasing to one side thereof.

3'. In a rotary pump, the combination with a casing, of a driving memberrotatably mounted therein, said driving member comprising end disks,a'plurality of driving blades arranged between said end disks andextending spirally from the axial center of said disks, means on saiddriving blades adapted to direct the contents of the casing toward oneside thereof and a deflector on peller, the bottom of the pump casingbeing inclined toward the axis of the impeller for receiving the liquidby gravity, and the bot-- tom of said impeller being provided withinclined surfaces for riding upon the liquid on the inclined bottom ofthe pump casing.

In testimony whereof wehave signed our names to this specification inthe presence of two subscribing witnesses. I

GEORGE MILLER. NOAH J. BECKNER.

\Vitnesses T. W. HOWELL, J AGOB M. PHILIPPI.

